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Is there a difference between interior and exterior door hinges?

Views: 655     Author: D&D Hardware     Publish Time: 2019-07-08      Origin: D&D Hardware

Is there a difference between interior and exterior door hinges?

A door, a building entrance or exit, or a device that can be opened and closed at the entrance and exit, is an entity that divides a limited space and can connect and block the entrance and exit of two or more spaces. Doors can be classified into interior doors and exterior doors. Functionally speaking, interior doors generally refer to bedroom doors and office doors, and exterior doors generally refer to security doors and fire doors.

The function is different and the materials are different. There are also essential differences in the matching of accessories. Let us briefly introduce the difference between the interior door hinge and the exterior door hinge.

We analyze from the following two points:

1. Differences in material and size between interior door hinges and exterior door hinges

2. Distinguish hinges from the function of the door

1. Differentiate interior door hinges and exterior door hinges from materials

From the material analysis, most of the interior doors are made of wood. The interior doors can serve as a visual and privacy function between rooms without the need to weather the weather. They rarely contain a lot of noise or temperature protection. In contrast, the function of the hinge is the most basic connection door and door frame. The weight of the load-bearing door does not allow the door to sag. And let the door rotate freely under the lowest frictional resistance.

 Main room - European wooden single door

The exterior door is mainly made of metal. Because of the need to adapt to the inevitable weather conditions. The exterior doors are made to withstand all weather and environmental changes or fire conditions. The corresponding hinges must not only have the various functions to suit the installation environment, but also the ability to withstand heavier metal doors.

In terms of size, the exterior door hinge is thicker in thickness and larger in outer dimensions than the interior door hinge. In materials, more materials for interior door hinges are available, such as copper or iron; exterior door hinges use 201, 304, 316 stainless steel for corrosion and rust resistance. At the same time, stainless steel hinges are more durable and cost-effective, and the frequency of replacement is not high.

 Escape Exit - American Double Door

2. Distinguish hinges from the function of the door

Interior doors are generally used for privacy or interior space interiors, so most interior door hinges have the function of opening and closing the door.

   mortise door hinge   outside door hinges

Exterior door hinges have different functions depending on the environment. For example, the fire door hinge must have the function of fireproof and easy to disassemble. It also needs to meet the tests of ANSI and EN 1935. The exterior door not only has its own anti-theft function, but also the hinges need not be easily opened, so the anti-theft hinge will be used. Other doors require an auto-shutdown feature that uses a spring hinge with automatic reset.

   grade 2 Black door handle   CE Door Hinge

Each door has its function. In order to stabilize the function of the door, the corresponding door hardware must be used together. In order to better play the effect of the door, it is necessary to select the door hardware with the corresponding function according to the use scene, environment and other factors. D&D hardware has a good door hinge product, and there are also detailed hardware solutions that can be given according to different situations. Professional services and quality products can make customers more assured and cost-effective.

D&D Hardware offer certified Door ironmongery for Metal Doors & Fire Rated Metal Doors, comply with the American standards and the European Standards, BS EN, CE, UL, ANSI and BHMA certification, Suitable for Education, Healthcare, Hotel, Government , Apartment building, Hospitality Commercial applications.


D&D hardware has more than 12 years of experience for doors, include fire rated door hinges, ANSI fire door hinges, Door handles, Mortise locks, Door closers, Panic exit devices and Door Accessories etc.

For further information about Metal door solution or any of our services, click

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Contact: David Jian
Mob:0086-139 2903 7292

Jobby Zhang
Mob:0086-137 2599 9617


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